Means for supporting reinforcing-rods for cement structures.



NRE-71,017. EATENTED Nov. 12, 1907.

' A. WITTE. vMERNS EUR SUPPORTING RETNTURUTRG RoDs EUR CEMENT STRUCTURES.

` APPLICATION FILED JULY 31, 190,6.

.f WM Rf UNITED STATES PATENTN OFFICE.

ALBERT WITTE, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO ALBERT JAMES REDWAY, OF CINCINNATI, OHIO.

MEANS FOR SUPPORTING RIEINFORCING-ROZDS FOR CEBUNT STRUCTURES.

Specification of Letters Patent.

Patented Nov. 12,1907.

Application iiled July 31.1906. Serial No. 328613.

To all whom 'it may concern: l

Be it known that Il, ALBERT Wn'rn, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new anduseful Improvements in Means for Supporting Reinforcing-Rods for Cement Structures, of which the lollowing is 'a specication.

My invention relates to improved means for supporting steel bars and the like used in reinforced concrete li) structure. l

vTheA objectl of my invention is to provide means whereby steel bars used in reinforced concrete structure are' held in their set position free from each other and from the false structure, whereby the concrete mixture when filled into this false structure can entireiy surround the' reinforcing bars thus preventing the same from coming in contact with each other. y The features of my invention are more fully set forth in the description of the accompanying drawings, forming a part of this specification, in which r-f Figure l is a side elevation of my improved means for supporting reinforcing bars. Fig. 2 is an enlarged secr tion on line fr, rr, Fig. 1. Fig. 3 is an enlarged sectional view similar to Fig. 2, but showing another set of reinforcing bars spaced from each other and securely held in such spaced position. Fig. 4 is a perspective view of one ofthe clamping plates.

1, 2, represent reinforcing bars and as shown are twisted steel bars of particular shape. But the bars can v be of any form employed for various work in reinforced concrete structure and my invention appertains only in maintaining the bars in a spaced position prior to and during the forming ofthe cement work.

3, 4, represent clamping plates adapted to be supported upon each side ol` the bars, said clamping plates are preferably provided with an orifice 5 and an elongated slot 6.

7 represents a pin or tie rod," the ends ot which are bent downward and passed through the orifices 5 of the 'together by an elongated bolt 9 and tie rod 10. Of`

course it being understood that more than two reinforcing rods may be employed and lockedin position, in

which instance theclamping plates are made of greater length and additional locking bolts provided.

The bars being held a selected distance apart, by theirclamping plates, form a single unitary, but spaced structural element, which not only allows the concrete to be filled in between the constituent parts, but which also allows such single elements or units to be spaced relative to other reinforcing units, whether of the same or different species. i

Having described my invention, I claim:-

' I. A unitary spaced structural element for reinforcing concrete, comprising a bar arranged in a horizontal plane, in 4combination with spacing plates arranged vertically and in pairs, said plates being provided` with slots, clamplng means passing through said slots and beneath the bar securing the bar between the plates, substantially as de scribed.

2. A unitary spaced structural element for reinforcing concrete. comprising n series of parallel bars, in combination with spacing plates arranged in pairs, said plates being provided with oriilces, clamping menus passing through said orices und beneath the bars securing the bars betweenthe plates und in sli-iced positions from each other, substantially us described.

In testimony whereof, I have hereunto set my hand.

ALBERT WITTE.

Witnesses:

OLIvniz B. KAlsEn, Luiss BECK. 

